ʻO ka noi mua o DCP - Bolts ma ʻAmelika

i ka hale mālama i kona wā e ola ana,

ʻO kahi hale mālama - kahi keʻena arched 183 m lōʻihi me ka lōʻihi o 18 m a me ke kiʻekiʻe o 17 m,

ʻO nā pūnana hoʻohui - pōkole 4.5 m ka lōʻihi o ke ʻano o ke ʻano kāmaʻa lio,

ʻO ke kumu hoʻoheheʻe - pono no ka hāʻawi ʻana i ka ea hou i ka hale mālama.

Ke hoʻohana ʻia nei ka SEM (sequential excavation method) e hoʻokele i nā tunnels. Hoʻopili ʻia nā hana hoʻoheheʻe maʻamau, pahū, a me ka ʻāʻī e ka hoʻoikaika ʻana i ka pōhaku me nā mea kākoʻo e like me ka uwea wili i hoʻopaʻa ʻia, nā ʻāpana lattice kila, nā pahu pōhaku, nā spiles, a me ka shotcrete. I loko o ka laulā o kēia papahana kūkulu, hāʻawi ʻo DSI Ground Support i nā huahana no ka hoʻopaʻa ʻana i ka tunnel e like me ka welded wire mesh, friction bolts, 32 mm hollow bars, threadbar, double corrosion protection bolts (DCP Bolts), a me nā lako lako e like me nā papa, nati. , mea hui, resin.

ʻO ka mea koʻikoʻi o kēia papahana ka hoʻohana ʻana o DSI DCP Bolts no ka manawa mua ma ʻAmelika. No kēia kahua hana, ua koi ʻia he 3,000 DCP Bolts ma nā ʻano lōʻihi mai 1.5 m a 6 m. Hāʻawi ʻia nā huahana āpau e DSI Ground Support, Salt Lake City, i ka manawa kūpono. Ma waho aʻe o kēia mau lako, hāʻawi ʻo DSI Ground Support i ke kākoʻo ʻenehana me ka hoʻokomo ʻana i ka bolt a me ka grouting, ka hoʻomaʻamaʻa hoʻāʻo huki, a me ka hōʻoia ʻana i ka miner.